diff --git a/public/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/igvtools/IGVToolsCount.scala b/public/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/igvtools/IGVToolsCount.scala
index 4526c2143662bcbc650753cd8d171c81fdd37e63..37589c5d2b32caf210cec84204bb81e1f2fbd030 100644
--- a/public/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/igvtools/IGVToolsCount.scala
+++ b/public/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/igvtools/IGVToolsCount.scala
@@ -44,7 +44,7 @@ class IGVToolsCount(val root: Configurable) extends IGVTools {
 
   var pairs: Boolean = config("pairs", default = false)
 
-  override val defaultVmem = "4G"
+  override val defaultVmem = "6G"
 
   override def beforeGraph {
     super.beforeGraph